Muscle Run - Grow Bigger is one of those rush games running where you have to keep running and keep collecting energy to grow muscle. Thinking of growing some muscles virtually? Try this muscle race and grow bigger in every step. Get rough and tough, get a grip on your body, run and break down walls and other obstacles and don't lose your muscle! If you love playing strong man games like smash running, then try this muscle man game, smash through barriers and don't get a sore muscle. Grow your